Home / 10,011.72-15,018.12-2,616.20

Finding the Fourth Proportional to 10,011.72, 15,018.12 and 2,616.20

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Solution

The fourth proportional to 10,011.72, 15,018.12 and 2,616.20 is: 3,924.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,011.72 : 15,018.12 = 2,616.20 : x
  2. Step 2: Convert to fraction form
    10,011.72/15,018.12 = 2,616.20/x
  3. Step 3: Cross multiply
    10,011.72x = 15,018.12 × 2,616.20
  4. Step 4: Simplify right side
    10,011.72x = 39,290,405.54
  5. Step 5: Solve for x
    x = 39,290,405.54/10,011.72
  6. Step 6: Final answer
    x = 3,924.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.